Adds View::GetNativeTheme() to get the NativeTheme. The interesting

ui/views/widget/widget.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/views/widget/widget.h"
 
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
 #include "ui/base/events/event.h"
@@ skipping 654 matching lines @@
     if (provider)
       return provider;
 
     provider = root_widget->default_theme_provider_.get();
     if (provider)
       return provider;
   }
   return default_theme_provider_.get();
 }
 
+ui::NativeTheme* Widget::GetNativeTheme() {
+  return native_widget_->GetNativeTheme();
+}
+
 FocusManager* Widget::GetFocusManager() {
   Widget* toplevel_widget = GetTopLevelWidget();
   return toplevel_widget ? toplevel_widget->focus_manager_.get() : NULL;
 }
 
 const FocusManager* Widget::GetFocusManager() const {
   const Widget* toplevel_widget = GetTopLevelWidget();
   return toplevel_widget ? toplevel_widget->focus_manager_.get() : NULL;
 }
 
@@ skipping 675 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // internal::NativeWidgetPrivate, NativeWidget implementation:
 
 internal::NativeWidgetPrivate* NativeWidgetPrivate::AsNativeWidgetPrivate() {
   return this;
 }
 
 }  // namespace internal
 }  // namespace views